240225688657 has 6 divisors (see below), whose sum is σ = 251124397202. Its totient is φ = 229781092992.

The previous prime is 240225688631. The next prime is 240225688691. The reversal of 240225688657 is 756886522042.

It can be written as a sum of positive squares in only one way, i.e., 204716431936 + 35509256721 = 452456^2 + 188439^2 .

It is not a de Polignac number, because 240225688657 - 2¹⁵ = 240225655889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240225688598 and 240225688607.

It is not an unprimeable number, because it can be changed into a prime (240225688607) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 227055888 + ... + 227056945.

Almost surely, 2^240225688657 is an apocalyptic number.

It is an amenable number.

240225688657 is a deficient number, since it is larger than the sum of its proper divisors (10898708545).

240225688657 is an equidigital number, since it uses as much as digits as its factorization.

240225688657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454112879 (or 454112856 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 240225688657 in words is "two hundred forty billion, two hundred twenty-five million, six hundred eighty-eight thousand, six hundred fifty-seven".